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Sotos KE, Goggs R, Stablein AP, Brooks MB. Increased thrombin activatable fibrinolysis inhibitor activity is associated with hypofibrinolysis in dogs with sepsis. Front Vet Sci 2023; 10:1104602. [PMID: 36876005 PMCID: PMC9978197 DOI: 10.3389/fvets.2023.1104602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 01/30/2023] [Indexed: 02/18/2023] Open
Abstract
Introduction Disorders of coagulation are well-recognized in dogs with sepsis, but data regarding fibrinolysis disorders are limited. We aimed to characterize fibrinolysis in dogs with sepsis compared to healthy controls. We hypothesized that dogs with sepsis would be hypofibrinolytic, and that hypofibrinolysis would be associated with non-survival. Methods This was a prospective observational cohort study. We enrolled 20 client-owned dogs with sepsis admitted to the Cornell University Hospital for Animals and 20 healthy pet dogs. Coagulation and fibrinolytic pathway proteins including antiplasmin activity (AP), antithrombin activity (AT), thrombin activatable fibrinolysis inhibitor activity (TAFI), D-dimer concentration, fibrinogen concentration, and plasminogen activity were measured and compared between groups. Overall coagulation potential, overall fibrinolysis potential, and overall hemostatic potential were calculated from the curve of fibrin clot formation and lysis over time. Results Compared to healthy controls, dogs with sepsis had lower AT (P = 0.009), higher AP (P = 0.002), higher TAFI (P = 0.0385), and higher concentrations of fibrinogen (P < 0.0001) and D-dimer (P = 0.0001). Dogs with sepsis also had greater overall coagulation potential (P = 0.003), overall hemostatic potential (P = 0.0015), and lower overall fibrinolysis potential (P = 0.0004). The extent of fibrinolysis was significantly negatively correlated with TAFI. No significant differences were observed between survivors and non-survivors. Discussion Dogs with sepsis were hypercoagulable and hypofibrinolytic compared to healthy dogs, suggesting potential utility of thromboprophylaxis in this patient population. The association between high TAFI and low overall fibrinolysis potential might provide a potential mechanism for this hypofibrinolysis.
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Affiliation(s)
- Katherine E Sotos
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, United States
| | - Robert Goggs
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, United States
| | - Alyssa P Stablein
- Comparative Coagulation Laboratory, Animal Health Diagnostic Center, Cornell University, Ithaca, NY, United States
| | - Marjory B Brooks
- Comparative Coagulation Laboratory, Animal Health Diagnostic Center, Cornell University, Ithaca, NY, United States
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Claesen K, Sim Y, Bracke A, De bruyn M, De Hert E, Vliegen G, Hotterbeekx A, Vujkovic A, van Petersen L, De Winter FHR, Brosius I, Theunissen C, van Ierssel S, van Frankenhuijsen M, Vlieghe E, Vercauteren K, Kumar-Singh S, De Meester I, Hendriks D. Activation of the Carboxypeptidase U (CPU, TAFIa, CPB2) System in Patients with SARS-CoV-2 Infection Could Contribute to COVID-19 Hypofibrinolytic State and Disease Severity Prognosis. J Clin Med 2022; 11:jcm11061494. [PMID: 35329820 PMCID: PMC8954233 DOI: 10.3390/jcm11061494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/23/2022] [Accepted: 03/01/2022] [Indexed: 01/27/2023] Open
Abstract
Coronavirus disease 2019 (COVID-19) is a viral lower respiratory tract infection caused by the highly transmissible and pathogenic SARS-CoV-2 (severe acute respiratory-syndrome coronavirus-2). Besides respiratory failure, systemic thromboembolic complications are frequent in COVID-19 patients and suggested to be the result of a dysregulation of the hemostatic balance. Although several markers of coagulation and fibrinolysis have been studied extensively, little is known about the effect of SARS-CoV-2 infection on the potent antifibrinolytic enzyme carboxypeptidase U (CPU). Blood was collected longitudinally from 56 hospitalized COVID-19 patients and 32 healthy controls. Procarboxypeptidase U (proCPU) levels and total active and inactivated CPU (CPU+CPUi) antigen levels were measured. At study inclusion (shortly after hospital admission), proCPU levels were significantly lower and CPU+CPUi antigen levels significantly higher in COVID-19 patients compared to controls. Both proCPU and CPU+CPUi antigen levels showed a subsequent progressive increase in these patients. Hereafter, proCPU levels decreased and patients were, at discharge, comparable to the controls. CPU+CPUi antigen levels at discharge were still higher compared to controls. Baseline CPU+CPUi antigen levels (shortly after hospital admission) correlated with disease severity and the duration of hospitalization. In conclusion, CPU generation with concomitant proCPU consumption during early SARS-CoV-2 infection will (at least partly) contribute to the hypofibrinolytic state observed in COVID-19 patients, thus enlarging their risk for thrombosis. Moreover, given the association between CPU+CPUi antigen levels and both disease severity and duration of hospitalization, this parameter may be a potential biomarker with prognostic value in SARS-CoV-2 infection.
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Affiliation(s)
- Karen Claesen
- Laboratory of Medical Biochemistry, Department of Pharmaceutical Sciences, University of Antwerp, 2610 Wilrijk, Belgium; (K.C.); (Y.S.); (A.B.); (M.D.b.); (E.D.H.); (G.V.); (I.D.M.)
| | - Yani Sim
- Laboratory of Medical Biochemistry, Department of Pharmaceutical Sciences, University of Antwerp, 2610 Wilrijk, Belgium; (K.C.); (Y.S.); (A.B.); (M.D.b.); (E.D.H.); (G.V.); (I.D.M.)
| | - An Bracke
- Laboratory of Medical Biochemistry, Department of Pharmaceutical Sciences, University of Antwerp, 2610 Wilrijk, Belgium; (K.C.); (Y.S.); (A.B.); (M.D.b.); (E.D.H.); (G.V.); (I.D.M.)
| | - Michelle De bruyn
- Laboratory of Medical Biochemistry, Department of Pharmaceutical Sciences, University of Antwerp, 2610 Wilrijk, Belgium; (K.C.); (Y.S.); (A.B.); (M.D.b.); (E.D.H.); (G.V.); (I.D.M.)
| | - Emilie De Hert
- Laboratory of Medical Biochemistry, Department of Pharmaceutical Sciences, University of Antwerp, 2610 Wilrijk, Belgium; (K.C.); (Y.S.); (A.B.); (M.D.b.); (E.D.H.); (G.V.); (I.D.M.)
| | - Gwendolyn Vliegen
- Laboratory of Medical Biochemistry, Department of Pharmaceutical Sciences, University of Antwerp, 2610 Wilrijk, Belgium; (K.C.); (Y.S.); (A.B.); (M.D.b.); (E.D.H.); (G.V.); (I.D.M.)
| | - An Hotterbeekx
- Molecular Pathology Group, Laboratory of Cell Biology & Histology, Faculty of Medical & Health Sciences, University of Antwerp, 2610 Wilrijk, Belgium; (A.H.); (F.H.R.D.W.); (S.K.-S.)
| | - Alexandra Vujkovic
- Clinical Virology Unit, Institute of Tropical Medicine, 2000 Antwerp, Belgium; (A.V.); (K.V.)
| | - Lida van Petersen
- Department of Clinical Sciences, Institute of Tropical Medicine, 2000 Antwerp, Belgium; (L.v.P.); (I.B.); (C.T.); (M.v.F.)
| | - Fien H. R. De Winter
- Molecular Pathology Group, Laboratory of Cell Biology & Histology, Faculty of Medical & Health Sciences, University of Antwerp, 2610 Wilrijk, Belgium; (A.H.); (F.H.R.D.W.); (S.K.-S.)
| | - Isabel Brosius
- Department of Clinical Sciences, Institute of Tropical Medicine, 2000 Antwerp, Belgium; (L.v.P.); (I.B.); (C.T.); (M.v.F.)
| | - Caroline Theunissen
- Department of Clinical Sciences, Institute of Tropical Medicine, 2000 Antwerp, Belgium; (L.v.P.); (I.B.); (C.T.); (M.v.F.)
| | - Sabrina van Ierssel
- Department of General Internal Medicine, Infectious Diseases and Tropical Medicine, University Hospital Antwerp, 2650 Edegem, Belgium; (S.v.I.); (E.V.)
| | - Maartje van Frankenhuijsen
- Department of Clinical Sciences, Institute of Tropical Medicine, 2000 Antwerp, Belgium; (L.v.P.); (I.B.); (C.T.); (M.v.F.)
| | - Erika Vlieghe
- Department of General Internal Medicine, Infectious Diseases and Tropical Medicine, University Hospital Antwerp, 2650 Edegem, Belgium; (S.v.I.); (E.V.)
| | - Koen Vercauteren
- Clinical Virology Unit, Institute of Tropical Medicine, 2000 Antwerp, Belgium; (A.V.); (K.V.)
| | - Samir Kumar-Singh
- Molecular Pathology Group, Laboratory of Cell Biology & Histology, Faculty of Medical & Health Sciences, University of Antwerp, 2610 Wilrijk, Belgium; (A.H.); (F.H.R.D.W.); (S.K.-S.)
| | - Ingrid De Meester
- Laboratory of Medical Biochemistry, Department of Pharmaceutical Sciences, University of Antwerp, 2610 Wilrijk, Belgium; (K.C.); (Y.S.); (A.B.); (M.D.b.); (E.D.H.); (G.V.); (I.D.M.)
| | - Dirk Hendriks
- Laboratory of Medical Biochemistry, Department of Pharmaceutical Sciences, University of Antwerp, 2610 Wilrijk, Belgium; (K.C.); (Y.S.); (A.B.); (M.D.b.); (E.D.H.); (G.V.); (I.D.M.)
- Correspondence: ; Tel.: +32-3-265-27-27
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Wada H, Honda G, Kawano N, Uchiyama T, Kawasugi K, Madoiwa S, Takezako N, Suzuki K, Seki Y, Ikezoe T, Iba T, Okamoto K. Severe Antithrombin Deficiency May be Associated With a High Risk of Pathological Progression of DIC With Suppressed Fibrinolysis. Clin Appl Thromb Hemost 2020; 26:1076029620941112. [PMID: 32833540 PMCID: PMC7448134 DOI: 10.1177/1076029620941112] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 06/06/2020] [Accepted: 06/17/2020] [Indexed: 12/03/2022] Open
Abstract
The frequency of severe antithrombin deficiency (SAD) was examined in the hematopoietic disorder-, infectious-, and basic-types of the disseminated intravascular coagulation (DIC). A posthoc analysis of 3008 DIC patients (infectious-type, 1794; hematological disorder-type, 813; and basic-type, 401) from post-marketing surveillance data of thrombomodulin alfa was performed. The clinical features of patients and outcomes were compared between patients with and without SAD, using an antithrombin cutoff value of 50%. Patients with SAD accounted for 40.4% of infectious-type DIC, 8.0% of hematopoietic disorder-type DIC, and 26.7% of basic-type DIC. There was no significant difference in thrombin-antithrombin complex levels between patients with and without SAD. The decreased fibrinogen level and differences in clinical features were significantly greater but the increases in fibrinolytic markers were significantly lower in patients with SAD than in those without. The 28-day survival rate was significantly lower in patients with SAD than in those without. Severe antithrombin deficiency was observed in all types of DIC, including hematopoietic disorders. Both hypofibrinolysis and hypercoagulability in patients with SAD may cause multiple organ failure and poor outcomes.
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Affiliation(s)
- Hideo Wada
- Department of General Medicine, Mie Prefectural General Medical Center, Mie, Japan
| | - Goichi Honda
- Department of Medical Affairs, Asahi Kasei Pharma Corporation, Tokyo, Japan
| | - Noriaki Kawano
- Department of Internal Medicine, Miyazaki Prefectural Miyazaki Hospital, Miyazaki, Japan
| | - Toshimasa Uchiyama
- Department of Laboratory Medicine, National Hospital Organization Takasaki General Medical
Center, Gunma, Japan
| | - Kazuo Kawasugi
- Faculty of Medical Technology, Teikyo University, Tokyo, Japan
| | - Seiji Madoiwa
- Department of Clinical Laboratory Medicine, Tokyo Saiseikai Central
Hospital, Tokyo, Japan
| | - Naoki Takezako
- Department of Hematology, National Hospital Organization Disaster
Medical Center, Tokyo, Japan
| | - Kei Suzuki
- Emergency and Critical Care Center, Mie University Hospital, Mie, Japan
| | - Yoshinobu Seki
- Department of Hematology, Uonuma Institute of Community Medicine, Niigata University Medical and Dental
Hospital, Niigata, Japan
| | - Takayuki Ikezoe
- Department of Hematology, Fukushima Medical
University, Fukushima, Japan
| | - Toshiaki Iba
- Department of Emergency and Disaster Medicine, Juntendo University Graduate School of
Medicine, Tokyo, Japan
| | - Kohji Okamoto
- Department of Surgery, Center for Gastroenterology and Liver
Disease, Kitakyushu City Yahata Hospital, Fukuoka, Japan
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Serum-Mediated Cleavage of Bacillus anthracis Protective Antigen Is a Two-Step Process That Involves a Serum Carboxypeptidase. mSphere 2018; 3:3/3/e00091-18. [PMID: 29950379 PMCID: PMC6021598 DOI: 10.1128/msphere.00091-18] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 06/09/2018] [Indexed: 11/20/2022] Open
Abstract
Our findings identify a serum-mediated modification of PA20 that has not been previously described. These observations further imply that the processing of PA is more complex than currently thought. Additional study is needed to define the contribution of serum processing of PA to the host response and individual susceptibility to anthrax. Much of our understanding of the activity of anthrax toxin is based on in vitro systems, which delineate the interaction between Bacillus anthracis toxins and the cell surface. However, these systems fail to account for the intimate association of B. anthracis with the circulatory system, including the contribution of serum proteins to the host response and processing of anthrax toxins. Using a variety of immunological techniques to inhibit serum processing of B. anthracis protective antigen (PA) along with mass spectrometry analysis, we demonstrate that serum digests PA via 2 distinct reactions. In the first reaction, serum cleaves PA83 into 2 fragments to produce PA63 and PA20 fragments, similarly to that observed following furin digestion. This is followed by carboxypeptidase-mediated removal of the carboxy-terminal arginine and lysines from PA20. IMPORTANCE Our findings identify a serum-mediated modification of PA20 that has not been previously described. These observations further imply that the processing of PA is more complex than currently thought. Additional study is needed to define the contribution of serum processing of PA to the host response and individual susceptibility to anthrax.
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Shao Z, Nishimura T, Leung LLK, Morser J. Carboxypeptidase B2 deficiency reveals opposite effects of complement C3a and C5a in a murine polymicrobial sepsis model. J Thromb Haemost 2015; 13:1090-102. [PMID: 25851247 PMCID: PMC4452409 DOI: 10.1111/jth.12956] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Accepted: 03/18/2015] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND OBJECTIVES Carboxypeptidase B2 (CPB2) is a basic carboxypeptidase with fibrin and complement C3a and C5a as physiological substrates. We hypothesized that in polymicrobial sepsis, CPB2-deficient mice would have sustained C5a activity, leading to disease exacerbation. METHODS Polymicrobial sepsis was induced by cecal ligation and puncture (CLP). RESULTS Contrary to our hypothesis, Cpb2(-/-) mice had significantly improved survival, with reduced lung edema, less liver and kidney damage, and less disseminated intravascular coagulation. Hepatic pro-CPB2 was induced by CLP, leading to increased pro-CPB2 levels. Thrombomodulin present on mesothelium supported thrombin activation of pro-CPB2. Both wild-type and Cpb2(-/-) animals treated with a C5a receptor antagonist had improved survival, demonstrating that C5a was detrimental in this model. Treatment with a fibrinolysis inhibitor, tranexamic acid, caused a decrease in survival in both genotypes; however, the Cpb2(-/-) animals retained their survival advantage. Administration of a C3a receptor antagonist exacerbated the disease in both wild-type and Cpb2(-/-) mice and eliminated the survival advantage of Cpb2(-/-) mice. C5a receptor is expressed in both peritoneal macrophages and neutrophils; in contrast, C3a receptor expression is restricted to peritoneal macrophages, and C3a induced signaling in macrophages but not neutrophils. CONCLUSIONS While C5a exacerbates the peritonitis, resulting in a deleterious generalized inflammatory state, C3a activation of peritoneal macrophages may limit the initial infection following CLP, thereby playing a diametrically opposing protective role in this polymicrobial sepsis model.
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Affiliation(s)
- Z. Shao
- Stanford University School of Medicine, Division of Hematology, Department of Medicine, Stanford, CA 94305, USA and Veterans Affairs Palo Alto Health Care System, Palo Alto, CA 94304, USA
| | - T. Nishimura
- Stanford University School of Medicine, Department of Anesthesiology, Stanford, CA 94305, USA
| | - L. L. K. Leung
- Stanford University School of Medicine, Division of Hematology, Department of Medicine, Stanford, CA 94305, USA and Veterans Affairs Palo Alto Health Care System, Palo Alto, CA 94304, USA
| | - J. Morser
- Stanford University School of Medicine, Division of Hematology, Department of Medicine, Stanford, CA 94305, USA and Veterans Affairs Palo Alto Health Care System, Palo Alto, CA 94304, USA
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Kong HY, Wen XH, Huang SQ, Zhu SM. Epsilon-aminocaproic acid improves postrecirculation hemodynamics by reducing intraliver activated protein C consumption in orthotopic liver transplantation. World J Surg 2014; 38:177-85. [PMID: 24142329 DOI: 10.1007/s00268-013-2282-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Activated protein C (APC) is related to regulating the inflammatory response and hemodynamic stability upon reperfusion in cardiac operations and orthotopic liver transplantation (OLT). Epsilon-aminocaproic acid (EACA) is frequently used to treat fibrinolysis during OLT. It also has inhibitory effects related to the inflammatory response. However, it remains to be determined whether EACA can attenuate intraliver APC consumption and improve hemodynamic stability after reperfusion during OLT. METHODS Fifty-nine recipients were randomized to receive either EACA (150 mg kg(-1) given intravenously prior to incision, followed by 15 mg kg(-1) h(-1) infusion until 2 h after the graft reperfusion) or the same volume of saline. Blood samples to assess plasma APC and protein C were obtained immediately before and after reperfusion from the inferior caval effluent or the portal veins for calculation of transliver differences (Δ). Hemodynamics and vasoactive medication use during the reperfusion period were observed in both groups. RESULTS No transhepatic changes in protein C were found in either group. Immediately after reperfusion, a marked intraliver consumption of APC was noted in all recipients (P < 0.001), and intraliver consumption of APC in the control group was greater than that in the EACA-treated group (P < 0.05). Fewer requirements for vasoactive medication use after reperfusion and better initial graft function were noted in the EACA-treated group (P < 0.05). CONCLUSIONS EACA can attenuate intraliver APC consumption and improve hemodynamic stability after reperfusion and initial graft function during OLT.
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Affiliation(s)
- H Y Kong
- Department of Anesthesiology, 1st Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, China,
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Kim HK. Assessment of thrombin-activatable fibrinolysis inhibitor (TAFI) activation in acquired hemostatic dysfunction: a diagnostic challenge. THE KOREAN JOURNAL OF HEMATOLOGY 2011; 45:215-6. [PMID: 21253418 PMCID: PMC3023042 DOI: 10.5045/kjh.2010.45.4.215] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hyun Kyung Kim
- Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Korea
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